Marcus “Bosse” Grönholm (born February 5, 1968) is a Finnish former rally and rallycross driver, being part of a family of the Swedish-speaking population of Finland lineage. His son, Niclas Grönholm, is an upcoming FIA World Rallycross Championship driver. Grönholm’s nicknames are either “Bosse” (mainly in his native Finland and the Scandinavian countries) or “Magic Marcus”. Grönholm is one of the most successful WRC drivers of…